Application and research of microtremor horizontal-vertical spectral ratio combined with drilling proofreading in historical solid waste storage area
There is a large amount of waste slag in the solid waste storage area,which causes a high potential energy of artificial debris flow and dam break hazard.In order to avoid danger,this paper chooses the micro-tremor spectral ratio method to carry out geophysical prospecting work and combines a small amount of drill-ing to verify the inversion parameters.The different surface wave velocity regions and different surface wave velocity and the best choice of inversion parameters of microtremor spectral ratio method are obtained in 3 solid waste storage area of Guangxi.The results show that in the area of low surface wave velocity,the pre-ferred value of shear wave surface velocity is small(usually less than 200 m/s),in the medium surface wave velocity area,the shear wave surface velocity is selected as the middle equivalent(about 250 m/s),in the high surface wave velocity area,the shear wave surface velocity is preferably higher(usually more than 300 m/s),mainly for the area with thin overburden,small proportion and complete bedrock.
microtremor horizontal-vertical spectral ratiodrilling proofreadingthe historical solid waste stor-age area